可以选用干热灭菌法的有
A．塑料容器B．金属制品C．橡胶塞D．蛋白多肽类药物E．抗生素
参考答案：B
I have a letter _____ to tell the headmaster that we need a room _____.
A．to write; to live in
B．to be written; living in
C．to write; to live
D．written; to be lived in
违约责任的承担方式
